Bucket or shovel construction for loaders



Sept. 30,. 1952 M.r QTUELAND 2,612,280

Iuo'KET orsi/:ovm cQNsTRUc'rIoN FOR LoADERs Filed Aug. 25, 1949 H.M.STUELAND v Patented Sept. 302 1952 r'.Deere1&l'Com1iany,Molineflllgacorporation of Illinois vQAiiiidatibiiaiest25, wie? i12-omnes. (Cif-21a Lisiv This-inventionLrelates to Ian improvedfshov'e'l or bucket 'construction `for' loadersand' diggers.-i

lThe Ypref-erred embodiment vof the invention "disclosed herein wasdesigned .primarily for use fas -a' shovel on Aa -manure loader andaccordingly principles of the invention 'peculiar' to that pur-"pose'lwill be emphasized. "readily appreciated 'that lthe invention maybe "otherwise-applied. v

` vIn'the conventional-'manure loa-der;V the-shovel- 10 'or l:bucketis"provided with vaplurality' of :fio-r1 -vvardly lextendingtine's whichare Adriven into the pile-so lthat the'A bucket and VAtin-esinay beloaded. VT-he bucket itself has a Yforward-or leading edge from whichthe -t-ines extend. Inasm-uch Aasf-the timesfar-e subjectto-rather-sever'e shock loading, -i-t-.has'always been--a-'lp'roblem' toprovide the best "means @for attaching :the-times --to --the bucket.'-Ob'vio'usly; since the tines areI often-broken, theycannot-bemadefan-integral part f the '-'buck-et -'-proper. It is known-ofcourse, -t'o-provide the ieaiding-ed'ge-offthe bucket `as-a double lip fwith=tiiefrearlportions of vvfthetines inserted therebe- "tweenA andsuitably clamped. However, the -lip lcir-double portion of the buck-ethas a consideriablevertical -dim-ension *which interferes with "eicientdigging and loading. Itis the'principal 'feature of -t-he presentinvention toeliminate -this wdouble vor increased thickness by formingthe bucket-fas `a -platehaving-- a leading edg-egenerally f1'clrorrugated configurationto provide alv plurality'-ftransverselyspaced-inverted channel portions vjoined f byintermediate plate fportions, and to f' nt lerflnestthe 'rear Aportions-of tne'tines, er1-equivaf-li'it' lex-tension means, --i-n H"suchchannels. A tran'sversev member at the underside of the plate cooperateswith the lower or l flat undersides of r`the-i-ntermediate'-plateportions and the-plate-and this member are --secured togetherintermediate the -tines to secure the -tines frictionallyfin place.Another feature yofthe invention resides in pro- -Yvi'd-ing'iadditional-or separate securi-ngmeans for @securing the rear vends-of thetines-tothe-bueket iplateq JI-he-bu-cket is v.preferablyarcuate ifi-*omidromffront to'rearwand curves upwardly;` The separate`oradditionalsecuringmeans" areI passed Ei'lh'rough' the upwardly curvedrear portionifffthe "bucket and *comprise individual bolts-forthe'f-individ'al `tinesythe axes of 'thesebolts being'fso "disposed thattheI plane of rearward shea-r ap- --plied to the bolts through the tinesis at an-arigle tothe general -plane of vthe"forward'portion' of ftheybuck-et'. `*It j -has heretofore `been known `f--tO providecomparableshear'bolts asasafety fea- Lture to"'prevent'damagetothetinesortothe 55 lofthe'plata-cooperating with the-inverted-ehanl However, itwill"be` -bucketlf However, thesfs-ecuringymeans provided accordingtofthepresent invention .areinovel to -l-theextentl-.indicatedv..2Iihe'l' f oregoingian'dfother important lobjectsf and :desirable-iffeatures-.n inherent-in .mandi encompassedebythiednventionfwillbecomeapparentiasitherdis- Vclosur 'ofc-.apref-erred embodimentrofvthe;inven- Ltion isifullys madeA -in thefollowing detailed: :de-

scription- .and accompanying sheetfof idra-WingS, in which-f-ormtoftines; v Figure-.2 is a transverse .sectional view 'taken-'-substantiall'y onthe .line..2-f21 of Figure 1; Avand r -Eigure- 3 1is: an 'senlarlgedf longitudinal,'sectional -vieW taken:substantially`onthe linel3-3 of Eiging-portion. vIn the--embo dim-enti.illustrated-the c sunken-2mg side plates is, :to eeen :of 'which als-"-s'ecured 5a Atru-nnio'n --I8 yto "provide '1 means f'forlrli-ount'i-ngthe `bucket enla-'suitable support; f-The"forwardp-or-tion of the 4plate Ill` isofcor- #rug-'atedconstructionto prov-ide a plurality J of inverted channel'portions--Z'Uf-spaced-'transversely f` '-"a'cro'ss theileading-edgeI2-land1extending'frearwardly-'ifrom the leading -edg-e. In--a--preferred '-c-onstruction, the channels are integral with-the 'lremainder of the platev structure. The provision ofthe channels 20vleaves intermediate pla-teportions 22 respectively betweenneighboring'achannels. fT-he undersidesfof these.intermediateaplate-portionsiare flat andflie substantially in ch-esame horizontal plane,as willrbe readily apparent from .-anexamination lof Figure 2. 'The'channels yex 'F.itendqrearwardly through a major portion oit-herearwardly and upwardly curved extent ,of the v--plajte-and-are-ofdecreasing` vertical section from jfront-to rear so that rearportions ofthe Achan- 45 nels'fair intothe rear portion ofthe plate (seeFigures land 3). v n ,H-Means'nciudng af transverse member 24 isVposition-ed below and parallels the leading edge 'lzfo'f'the plate,underlying' the open bottomso-f 50 thejfchannels '12u and liaving fitsupper "surf-ace fl'yingf'flsh against'the `ilatundersidesv of `theintermediate plate' portions 22. Th-e member n24 ftiius, providesrectangular-openings k'or )pockets spaced-"transversely `across theleading-edge r-I2 .Figure k1 is aperspectiveview. of thehuoket vshovel-.fequipped,iwth extension means in :the

vthe curvature of the plate.

plane 'ofthe leading edge of theplate.

' khere shown 4as, Icomprising a plurality of'V forwardly extendingtines 3U. Each tine has a rear end or nger portion 32 preferably formedintegral therewith and curved on the order of ther curva-ture of theplate l0, the rear finger por" tions of the tines respectively fittingthe channels 20. i These rear finger portions extend coextensive withthe channels substantially through a major portion of the platestructure, from front'v to rear.

The tines are assembled to the shovel by being the ability of the shovelto efficiently handle the job.'

Fairing of the channel portions into the rearward portion of the platefacilitates manufacture, since the channel portions are sufficientlylong to accommodate the tines, and, further, this design increases ,theself-cleaning characteristic i of the. shovel.

Otherobjects and important features of the invention not specicallyenumerated above will undoubtedly occur to those versed in the artl aswill numerous modications and alterations in Y vthe preferred structureillustrated, all of which inserted from rear to front respectivelythrough f the pockets formed by the inverted channels fand thetransverse member 24. The tines are fric- Y tionally and relativelyrigidly held in' place between the plate IB and the transverse memberZAlby securing means comprising a plurality 'of pairs of bolts 34, onepairof bolts being located between `neighboring channel porti-ons and'passing through the respective intermediate portions 22 and, of course,through the plate member'24. The heads of the bolts 34 are preferablyflattened andv countersunk, a detail that will 'appear in Figure 3. v

f As will best appear in Figures 2 and 3, the rear or nger portions 32of the tines 30 nest or t respectively within the channel portions 2!)and are thus held rigidly against lateral displacen The nuts on thebolts 34 are drawn up ment. tightly Yand thus clamp the plate and themember '24 together to fix the position of the tines. The tines areadditional secured to the plate by individual securing means, preferablycomprising 'a plurality of shear bolts 36, one for each tine.

vEach bolt is located adjacent a rear portionof 'the channelat whichpoint the channel fairs into the main curvature of the plate. In otherwords, each bolt 36 lies generally on a radius of Thus, the planeofrearward shear applied.y through the tines and finger portions thereofto the bolts 36 is atan angle to the general horizontal plane of theleading edge of the plate. These boltsare preferably shearable so thatthey will shearor yield `before damage occurs to the tines or to thekshovel proper.

However, the disposition of the bolts at the angle mentioned enablestheusei of lighter bolts that will meet the same-requirement .as boltsdisposed on axes normal to the horizontal .l As mentioned above, thechannel'portions :are preferably formed integral with those, portionsofrthe plates including the 'intermediate plate portions 22. However, itwill-.be obvious that thefchannels could be separately provided orotherwise arranged to achieve strap structure to form the pockets inwhich the rear portions of the tines are carried. Since the maximumvertical dimension of the leading 'edge of the plate is at that portionof the'plate occupied by the tines, and since the vertical dimensionintei-,mediate the tines is at a minimum, the digging `eiciency of the"structure is considerably improved, particularly over prior shovels inwhich the leading edge of the plate and Aa, transverse lmember.comparable to the member 24 fare Aspaced apart and ultimatelyaccumulate material toanextent found to interfere ,markedly` with may beachievedhwithout departing from the spirit and scope of the invention asdefined in the cluding a leading edge and extending horizontallyrearwardly and then curving upwardly'A as a rear trailing part so thatthe top surface blends into a forwardly facing inner surface and so thatthe bottom surface blends into a rearwardly facing outer surface, theforward part of the plate being formed with a plurality of elongatedfore-and-aft extending corrugations raised above the top ,surface andproviding a plurality of inverted channels opening forwardly to andspaced transversely across the leading edge ofthe plate and also openingdownwardly to the plane of the-bottom surface of the plate, saidVcorrugations ybeginningV at said leading edge andextendingrearwardlythroughout the length of the forward part of the plate and extendingfurther into the curved trailing part, said corrugations thinning out invertical dimension in the zone in which said top surface of the plateblends into. said forwardly facing inner surface so that the rear upperportions of the corrugations fair into said forwardly facing innersurface; a separate transverse member atthe underside of theforward part'of the plate having a flat upper surface abutting the undersurface ofthe plate -between the channels and closing Ythe bottoms ofnthe channelsto provide, with the channels, a pluralityfof forwardly opening,rearwardly extending pockets at the leading edge of the plate; ex-

tension means ahead of the plate and having a stantially equalrespectively to the vertical and transverse dimensions of the associatedchannel at the-leading edge of-the forward part, vsaid fingers extendingrearwardly at the bottom surface -ofvthe forward partfcoextensively withthe horizontal extent ofthe bottom surface and being Vcurvedupwardly tolconform to the curvature of theoutwardly facing outer surface of therear part of the plate; means securing the transverse member to vtheplate respectively intermediate the corrugations-With the fingersvbetween the memberand-the plate; and-.a plurality of connectingelements, one for each finger, securing l the fingers directly Atothecurved rear part of the plate, n.

2. The invention vdenedin `claim 1, further characterized in that: theconnecting elements vare shear bolts passed directly through 'the iinygers and the curved part of Athe plate ancrljlying 6 on axes in atransverse plane that is at an acute REFERENCES CITED angle to thehorizontal forward part of the plate; The following references aye ofrecord n the and the llngels are reltanecill between the memme O thispatent: y ber and e p ate sole y by he upper surface of v the member andthe sides and under parts of the 5 UNITED STATES PATENTS channels andsaid shear bolts are the sole means Number Name Date for taking rearwardthrust applied to the n- 818,100 Korml et a1. Apr. 17, 1906 gers so thatupon shearing of a bolt the asso- 967,819 McKenzie Aug. 16, 1910 catedfinger may move rearwardly in its channel 1,198,592 Stein Sept. 19, 1916relative to the plate. 10 1,217,500 Rehally Feb. 27, 1917 1,757,328Mullally May 6, 1930 HAROLD M. STUELAND. 1,807,632 McKee June 19311,989,776 Weimer Feb. 5, 1935

